Function Operations & Compositions

In this video we learn what f(x) is all about and what things like f(g(x)) and f(f(x)) are. We also learn about proving functions are inverse by showing f(g(x))=x and g(f(x))=x. This video is meant for Algebra 1 & 2 students. We look at composition of functions as well as operations (adding, subtracting, dividing, and multiplying) with functions. An example would be finding what f(x)+g(x) is.

[nickgasper]

Mr. Roberg, you teach this so much better than my teacher. She has taught it for three days now and this is so much simpler than what she was doing. Much appreciated!

[SuperMarioSM]

Watching this on its 7 year anniversary AND my brother's birthday! You'll never see this, but thank you Mr. Roberg!

[ryssamaetanan]

THIS IS MORE USEFUL THAN THE EXAMPLES IN OUR BOOK

[MgMettle]

I was struggling to remember these concepts and with exams coming up I wanted to find a way to re-learn this quickly. This video helped me out a ton!!!

[sarahpringle]

thank you! This really helped for my math final- I watched countless other videos and this one was quick and easy to understand! Thank you again!!! :)

[tanay]

This helped me a lot and was easy to understand compared to other solutions. Keep it up subscribed

[heyilikemusic]

Great video, I’m just stuck on example two, where did you get the 6x to the third power ?? Thank you

[kareemalenezi]

Thank you so much Mr.Roberg i was having a very hard time with this lesson and you made this seem very easy and you explained it really easily and i understood the whole lesson you just helped me with my test ❤️

[greyeyedone_]

Very helpful video.... thank you so much

[asren]

i may not be a student there anymore this video is still rather informative and pretty cool, ryan dizon would agree as well